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Product Description

This 5x10x4-millimeter shielded miniature ball bearing has deep groove geometry for high speeds and supporting both radial and axial loads. The metal shields on both sides of the bearing keep lubricant in and contaminants out, and it comes pre-lubricated from the manufacturer so that no additional lubrication is required. This deep-groove shielded miniature ball bearing is for use in applications that involve combined radial and axial loads and a need for high running accuracy at high rotational speeds. Such applications include clutches, drives, gearboxes, compressors, pumps, turbines, and printing and textile machines, among others.

What's in the Box

10 5x10x4-millimeter miniature ball bearings

Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

Most Helpful Customer Reviews

Item picture shows 10 bearings, title says "10 Bearing 5x10 Shielded 5x10x4 Miniature Ball Bearings", but what I received was one single bearing. I have contacted the seller. If it is just a mistake on shipper and if he sends me missing bearings, I will adjust the review again.

The one received bearing looks to be ok. I have not used it (it is in a plastic bag), as I ‌intend to return it if they say this is a single bearing listing.

Update (5/1/2014): After writing the above review, they sent me remaining 9 bearings and also let me know that the listing was for 1 bearing. But, clearly they had picture of 10 bearings and title indicating 10 bearings (it still does as of today)

As stated by another customer, the picture has 10 bearings, the title says "10 Bearing 5x10 Shielded 5x10x4 Miniature Ball Bearings" yet I only received one bearing. The whole reason I bought this item over others was the fact that I thought I was getting 10 bearings instead of 1.